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new cultivar of Exochorda plant named, `Kolmagisno`, that is
characterized by its well-branched, upright, and compact plant habit, its
flowers that are bright white in color, and its floriferous blooming
habit.

Inventors:

Kolster; Peter R.; (Boskoop, NL)

Applicant:

Name

City

State

Country

Type

Kolster HOlding BV

Boskoop

NL

Appl. No.:

14/545493

Filed:

May 12, 2015

Current U.S. Class:

PLT/226

Class at Publication:

PLT/226

International Class:

A01H 5/00 20060101 A01H005/00

Foreign Application Data

Date

Code

Application Number

Dec 12, 2014

EM

2014/3392

Claims

1. A new and distinct cultivar Exochorda plant named `Kolmagisno` as
herein illustrated and described.

Description

BOTANICAL CLASSIFICATION

[0001] Exochorda hybrid

VARIETY DENOMINATION

[0002] `Kolmagisno`

BACKGROUND OF THE INVENTION

[0003] The present invention relates to a new and distinct cultivar of
Exochorda of hybrid origin. The new cultivar will be referred to
hereafter by its cultivar name, `Kolmagisno`. `Kolmagisno` is a new
cultivar of deciduous shrub grown for use as a landscape shrub.

[0004] The new cultivar is a selection from a controlled breeding program
conducted by the Inventor at his nursery in Boskoop, The Netherlands with
the goal of selecting new cultivars of Exochorda that are floriferous
with upright plant habits.

[0005] `Kolmagisno` was derived from a cross made in by the Inventor in
March of 2006 between an unnamed plant of Exochorda serratifolia (not
patented) as the female parent and Exochorda macrantha `The Bride` (not
patented) as the male parent. `Kolmagisno` was selected in 2011 as a
single unique plant amongst the resulting seedlings.

[0006] Asexual propagation of the new cultivar was first accomplished by
the Inventor via stem cuttings in Boskoop, The Netherlands in June of
2011. Asexual propagation by stem cuttings has determined that the
characteristics of this cultivar are stable and are reproduced true to
type in successive generations.

SUMMARY OF THE INVENTION

[0007] The following traits have been repeatedly observed and represent
the characteristics of the new cultivar. These attributes in combination
distinguish `Kolmagisno` as a unique cultivar of Exochorda.

[0011] The female parent of `Kolmagisno` differs from `Kolmagisno` in
having a much less compact plant habit and in being less floriferous. The
male parent of `Kolmagisno`, `The Bride`, differs from `Kolmagisno` in
having a mounded plant habit with arching branches. `Kolmagisno` can also
be compared to the Exochorda cultivars `Niagara` (U.S. Plant Pat. No.
21,665) and `Snow White` (not patented). `Niagara` is similar to
`Kolmagisno` in having an upright plant habit. `Niagara` differs from
`Kolmagisno` in having a less compact plant habit and in being less well
branched. `Snow White` is similar to `Kolmagisno` in having a moderate
growth rate. `Snow White` differs from `Kolmagisno` in having a larger
plant size and in having a bloom period that commences earlier.

BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying colored photographs illustrate the overall
appearance and distinct characteristics of the new cultivar. The
photographs were taken of a five year-old plant of the new cultivar as
grown outdoors in a 10-liter container in Boskoop, The Netherlands. The
photograph in FIG. 1 provides a side-view of a plant of `Kolmagisno` in
bloom. The photograph in FIG. 2 provides a close-up view of
inflorescences of `Kolmagisno`. The photograph in FIG. 3 provides a
close-up view of the foliage of `Kolmagisno`. The colors in the
photographs are as close as possible with the photographic and printing
technology utilized and the color values cited in the Detailed Botanical
Description accurately describe the colors of the new Exochorda.

DETAILED BOTANICAL DESCRIPTION

[0013] The following is a detailed description of five year-old plants of
the new cultivar as grown in 10-liter containers in Boskoop, The
Netherlands. The phenotype of the new cultivar may vary with variations
in environmental, climatic, and cultural conditions, as it has not been
tested under all possible environmental conditions. The color
determination is in accordance with the 2007 RHS Colour Chart of The
Royal Horticultural Society, London, England, except where general color
terms of ordinary dictionary significance are used. [0014] General
description: [0015] Blooming period.--Blooms from April to early May
in The Netherlands. [0016] Plant type.--Perennial shrub. [0017] Plant
habit.--Upright and compact. [0018] Height and spread.--An average of 1 m
in height and 60 cm in spread. [0019] Cold hardiness.--At least to
U.S.D.A. Zone 5. [0020] Diseases.--No susceptibility or resistance to
diseases has been observed. [0021] Propagation.--Stem cuttings. [0022]
Growth rate.--Moderate. [0023] Roots.--Fleshy when young; becoming
fibrous on mature plants. [0024] Branch description: [0025] Stem
color.--Young; 144B, mature; N199C. [0026] Stem shape.--Rounded. [0027]
Stem strength.--Moderately strong. [0028] Stem surface.--Glabrous,
moderately glossy. [0029] Branching.--Freely branching with an average of
59 lateral branches. [0030] Stem size.--An average of 27.4 cm in length
and 3 mm in diameter. [0031] Foliage description: [0032]
Leaves.--Simple, elliptic-oblong to obovate in shape, alternate
arrangement, an average of 5.1 cm in length and 2.4 cm in width, abruptly
acute apex, attenuate base, margin; entire and occasionally very slightly
serrate near the top, internode length is an average of 1.5 cm,
attachment petiolate, color; new growth upper surface; 143A and lower
surface; 143C, mature upper surface; 137A to 137B and lower surface;
138B, venation; pinnate, vein color; upper surface 144B, lower surface
145B , upper and lower surfaces; glabrous and dull, bud-scales; present
at the base of emerging leaves, 47D in color, not persistent. [0033]
Petioles.--An average of 1.4 cm in length and 1 mm in diameter, 145B in
color, smooth surface. [0034] Inflorescence description: [0035]
Inflorescence type.--Raceme. [0036] Inflorescence size.--An average of 7
cm in height and 4 cm in diameter. [0037] Inflorescence number.--An
average of 42 per plant. [0038] Flower number.--An average of 11 flowers
per inflorescence. [0039] Flower fragrance.--None. [0040] Flower
longevity.--About 12 days, self-cleaning. [0041] Flower type.--Single,
rotate. [0042] Flower size.--An average of 3.7 cm in diameter and 1.3 cm
in depth. [0043] Flower aspect.--Upright to outward. [0044]
Peduncles.--An average of 6.5 cm in length and 1 mm in diameter, terminal
peduncles held at an average angle of 0.degree., straight on top of
lateral branch, axillary peduncles held in an average angle of 50.degree.
to lateral branches, moderate in strength, 144B in color, surface is
smooth. [0045] Pedicels.--An average of 2 mm in length and 0.75 mm in
diameter, held at an average angle of 45.degree. to peduncle, moderate in
strength, 144B in color, surface is smooth. [0046] Flower
buds.--Flattened globular in shape, an average of 5 mm in length and 6 mm
in diameter, color; lower half 145C and upper half NN155D. [0047]
Petals.--5, broad obovate to spathulate shape, upper and lower surfaces
are moderately glossy, slightly crinkled and glabrous, entire margin,
cuneate base, obtuse to broadly retuse apex, an average of 1.7 cm in
length and 1 cm width, color: when opening and when fully open upper and
lower surface; NN155D, color not fading. [0048] Sepals.--5, obovate in
shape, lower half fused, an average of 4 mm in length and width,
fimbriate apex and margin, fused base, upper and lower surfaces glabrous
and dull, color: immature upper surface and mature lower surface 150D
with proximal half 144A, immature lower surface and mature upper surface
150D with proximal half 147D. [0049] Calyx.--Rotate, lower half fused
forming a cup-like structure, an average of 3 mm in length and 1 mm in
diameter. [0050] Reproductive organs: [0051] Pistils.--5, an
average of 1 mm in length, stigma; flattened club-shaped and 151D in
color, style; an average of 0.5 mm in length and 151D in color, ovary is
144A in color. [0052] Stamens.--An average of 25, in 5 groups of 5,
placed at the base of each petal, anther; dorsifixed, broad
kidney-shaped, an average of 0.75 mm in length and 161D in color,
filament; an average of 2 mm in length and 157D in color, pollen is low
in quantity and 160D in color. [0053] Fruit.--No fruit or seed production
has been observed.